Pentax Up 8-16X21 Compact Zoom Binoculars Review
Pentax Up 8-16X21 Compact Zoom Binoculars Review . Read honest and unbiased product reviews from our users. Top 9 best zoom binoculars. Pentax 816x21 USeries UP Binocular (Green) 61963 B&H Photo from www.bhphotovideo.com The belt has a quick release design. This is a lightweight and compact zoom binocular with a 21mm aperture and magnification from 8x to 16x. I never owned a decent pair of compact binoculars.